Sawing-machine



J. A. ARNOLD.

SAWING MACHINE.

APPLICATION FILED APR. 23, 1920.

Patented Dec. 14, 1920.

3 SHEETS-SHEET 1.

' INVENTOR,

A TTORNEY.

J. A. ARNOLD.

SAWING MACHINE.

APPLICATION FILED APR. 23, 1920.

1,362,073. Patented Dec.14,1920.

3 $HEETS-SHEET 2- H-\&

x E Q 3 INVENTOR.

ATTORNEY.

3'. A. ARNOLD.

SAWING MACHINE.

APPLICATION FILED APR. 23. 1920.

1,362,073, Patented Dec. 14, 1920.

3 SHEETS-SHEET 3- IINVENTOR, 62 Qua/ 4L -WW/0M/ A TTORNEY.

, certain new UNITED STATES JAMES A. ARNOLD, OF DENIS-ON, TEXAS.

SAWING-MACHINE.

Specification of Letters Patent.

Patented Dec. 14, 1920.

Application filed April 23, 1920. Serial No. 376,086.

T all Mil/OWL it may concern:

it known that 1, James A. ARNOLD, a citizen the United States of America, and resident of Denison, in the county of Grayson and State of Texas, have invented and usefulv Improvements in Sawinglllachines, of which the following is a specification.

This invention relates to wood sawing machines and particularly to a portable wood sawing apparatus, the said device having novel means for adjusting the saw while it is being reciprocated for the purpose of creating a feed, the said device furthermore having saw carriers designed to cause the saws to operate or out vertically, horizontally or diagonally with relation to the horizontal.

A still further object of this invention is to produce a sawing machine having a truck with rotary table or bed mounted thereon, the said table supporting the saw operating mechanism having the characteristics and functions heretofore stated.

Vr ith the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompanying drawings forming part of this specification wherein like characters denote corresponding parts in the several views, and in vvhicn Figure 1 illustrates a view in elevation of a sawing machine embodying the invention;

2 illustrates a top plan view thereof; and

Fig. 3 illustrates a sectional view of the machine immediately to the rear of the side saw frame.

In these drawings 5 denotes any type of truck preferably low, although in this connection it should be stated that the devices may be made in difierent sizes, and the inventor, therefore, does not wish to be limited with respect to the proportions of any part of the device so far as they are mechanically successful. and operative. The truck has a turntable 6 on which the saw base 7 is rotatable; a pivot pin 8 being supplied for rotatably mounting the base of the turntable. The base 7 may support a motor 9 and of course any type of motor may be employed; the said motor having a drive wheel 10 engaged by a flexible member 11 such as a belt which runs over a pulley 12 having a. wrist pin 18 to which a pitman 14 is connected, the opposite end of the said pitman being connected to a cross head 15 reciprocating on the support 16.

Laterally projecting arms 17 and 18 are secured to the cross head 15 and depending arms 19 and 20 are secured to'the arms 17 and 18 respectively. A frame consisting of downwardly and outwardly projecting mem bers 21 and 22 is pivotally connected to the members 19 and 20, and the said members 21 and 22 are connected by a rod 23 which passes through the slot 24 of the lever 25, the said lever being osci'llatably mounted on the bracket 26 supported by the truck so that by the oscillation of the lever 25, the members 21 and 22 are caused to swing on the pivots 27 and 28 by which they are connected to the depending arms. The outer ends of the members 21 and 22 have a saw 29 adjustably secured to them with the teeth of the saw faced outwardly. The lever has its upper end connected to a link 30 and the said link is pivotally connected to a handle 31 oscillatable on a toothed quadrant 32 so that the lever 25 may be manipulated to operate the parts as stated. lhe handle 31 may have a detent 33 for engaging the toothed quadrant for the purpose of holding the parts in different positions of adjustment. When the cross head is reciprocated, it follows that the saw just described will operate, and as the base may be turned with relation to the truck, the saw may be advanced as the cutting op eration proceeds.

in addition to the saw for cutting horizontally the cross head may be supplied with saw mechanism in which the teeth of the saw face downwardly so that the cutting action is vertical. To that end, the cross head has a toothed quadrant 3 1 engaged by a detent for holding the handle 36 at different positions of adjustment; and the said handle oscillates an arm 37 which is pivotally connected to a link 38. An arm 39 extends downwardly from the cross head and one end of the saw 40 is mounted on the pivot 41 of the depending arm 39, whereas the outer end of the saw is pivotally connected to a link 42 which is suspended from the arm 43 to which the link 38 is pivotally connected, the said arm 43 being connected to the depending arm 39 by the pivot 44, so

that when the handle 36 is oscillated, the saw will be raised or lowered according to the direction of movement of the handle and an operator may raise or lower the saw 40 while the same is being reciprocated. When the saw 40 is being operated the base should of course be held stationary with relation to the truck.

I claim 1. In a sawing machine, a truck, a base mounted to turn thereon, a power generating means carried by the base, a cross head, means for connecting the power generating means to the cross head whereby the cross head is reciprocated, arms carried by the cross head and extending laterally therefrom, depending members carried by the arms, a frame oscillatably mounted on the depending members, said frame including a rod, a lever having a slot to receive the rod, means for oscillatably supporting the lever, means for moving the said lever, and a saw carried by the frame. 7

2. In a sawing machine, a truck, a base mounted to turn thereon, a power generating means carried by the base, a cross head, means for connecting the power generating means to the cross head whereby the cross head is reciprocated, arms carried by the crossrhead and extending laterally therefrom, depending members carried by the arms, a frame oscillatably mounted on the depending members, said frame including a rod, a lever having a slot to receive the rod, means for oscillatably supporting the lever, means for moving the said lever, a saw carried by the frame, a depending arm at the end of the said cross head, a saw pivotally connected to the depending arm, a link pivotally connected to the outer end of the last mentioned saw, an arm pivotally connected to the depending arm and to the link, and means for oseillatably supporting the pivoted arm.

3. In a sawing machine, a truck, a rotatable base, a cross head mounted to reciprocate on the base, a depending arm on the cross head, a saw having one end pivotally connected to the depending arm, a link pivotally connected to the outer end of the said saw, an arm pivoted to the depending arm and to the link, a link pivotally connected to the pivoted arm, a handle, means for communicating motion of the handle to the last mentioned link, and means for holding the handle at different positions of adjustment.

JAMES A. ARNOLD. 

